Measurement and accounting of the minor actinides produced in nuclear power reactors

Autor: J.E. Stewart, R.B. Walton, J.R. Phillips, S.T. Hsue, G.W. Eccleston, H.O. Menlove, J.M. Davidson, W.D. Stanbro
Rok vydání: 1996
Předmět:
DOI: 10.2172/204636
Popis: Because of their impacts on long-term storage of high-level radioactive waste and their value as nuclear fuels, measurement and accounting of the minor actinides produced in nuclear power reactors are becoming significant issues. This paper briefly reviews the commercial nuclear fuel cycle with emphasis on reprocessing plants and key measurement points therein. Neutron signatures and characteristics are compared and contrasted for special nuclear materials (SNMs) and minor actinides (MAs). The paper focuses on application of neutron-based nondestructive analysis (NDA) methods that can be extended for verification of MAs. We describe current IAEA methods for NDA of SNMs and extension of these methods to satisfy accounting requirements for MAs in reprocessing plant dissolver solutions, separated products, and high-level waste. Recommendations for further systems studies and development of measurement methods are also included.
Databáze: OpenAIRE